During Wednesday’s White House press briefing CNN‘s Jim Acosta got into a heated argument with White House Advisor Stephen Miller over the Trump administration’s announcement of a new immigration bill.

At one point, Acosta told Miller that “it just sounds like you’re trying to engineer the racial and ethnic flow of people into this country.”

“That is one of the most outrageous, ignorant, insulting, and foolish things you’ve ever said,” Miller replied.

“We can answer that question,” said Tucker Carlson, during his show on Wednesday night. “No, they don’t know the difference.

Carlson railed against CNN’s chief White House correspondent and the network as a whole during his opening segment.

“They are utterly ignorant on the subject of immigration,” said Carlson. “And yet and here’s the amazing part, they are still filled with absolute moral certainty and boundless self-righteousness. They are buffoons, in other words. They are the drunk at the party with bad breath who won’t stop talking. Wow, is that embarrassing!”

Carlson and his guest, conservative author Mark Steyn, mocked Acosta’s assertion that the new immigration plan is designed to only “bring in people from Great Britain and Australia.”

“The idea that this is just some pasty white man’s language is so deranged,” Steyn said. “Almost a third of the members of the United Nations are proficient English more or less.”